Arduino Projects and Circuits
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The Ping) is an ultrasonic range finder from Parallax. It detects the distance of the closest object in front of the sensor (from 2 cm up to 3m). It works by sending out a burst of ultrasound and listening for the echo when it bounces off of an object. The.... -
One problem I faced when starting to tinker with my Arduino was just how was I going to go about drawing circuit diagrams for my creations. There seemed to be a huge choice of packages out there that allow you to draw a schematic diagram, some free, some.... -
After some new experiments on sound analysis, I used a different design for the microphone amplifying section, that I am happy to share with you (From the statistics of Arduinoos, I know that sound capture is a topic of major interest for many of you). The.... -
This is a simplified schematic diagram for a home-made scanning backlight driven by an Arduino, an open-source electronics prototyping platform. The Arduino monitors the VSYNC signal (input-lag compensated) and executes a backlight scanning sequence, using.... -
Connecting and programming the TA8050 DC motor controller with the Arduino microcontroller.... -
In this circuit we demonstrate how to use SCRs to control low-voltage pulsating DC to operate homemade LED light panels. While in this circuit I use the Arduino, the concepts should work with any number of micro-controllers using either hardware interrupts.... -
How to connect and program the Arduino/Atmega168 microcontroller to operate a unipolar stepper motor.... -
How to connect and program the Arduino/Atmega168 microcontroller to LCD display and DS1307 RTC.... -
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This wireless transmitter and receiver pair operate at 315Mhz. They can easily fit into a breadboard and work well with microcontrollers to create a very simple wireless data link. Since these are only transmitters, they will only work communicating data.... -
The provided connections will provide configuration free usage for most Arduino boards. Some Arduino boards, such as the Mega2560, will require custom configuration. This is determined by how the ports on the Atmel AVR microcontroller are mapped to the.... -
The crock pot is attached to a relay that can switch it on or off. The relay is toggled by a microcontroller based on readings from a temperature sensor ( thermistor ) placed inside the crock pot. Heat the milk to 185 °F (85 °C). This kills off microbes to.... -
The project explains how to make simple AVR High Voltage Programmer using Arduino. It can be used to fix/recovery wrong fused AVR chip.... -
This project builds a Christmas lights controller for the GE Color Effects lights allowing programmed control of up to 8 sets of Christmas lights. Furthermore, it provides a function specific language for programming patterns for these lights and an.... -
The Arduino 2009 acts as a standalone weather station. It does not display the data. It can operate independently for months. It samples the sensors until the RAM is full. The RAM samples are stored on a sector of an SD card. Eventually, a year`s weather.... -
The Arduino Eye Shield is a circuit board that can be plugged on top of the Arduino allowing it to interpret analogue video ( PAL or NTSC ) from a camera or other source. It gives the Arduino the power of sight. There are many applications for this. In the.... -
The analog to digital sketches have been covered a million ways from Sunday with every conceivable part but in order for us to move on to more complex circuits and concepts I need to be sure you know these simpler ones. This tutorial wont be quite as in.... -
The requirement was to add a digital readout to an otherwise manually bend roller machine so that we could accurately monitor the amount of material fed into the machine. The readout should be simple to use, require no setup other than initial calibration.... -
When starting with Arduino, one soon has much more Arduino boards then RS232 or even USB ports on the computer. So that, it seems more useful to put the signal level converter to an external adapter than directly on the Arduino board. Usually, one has (I.... -
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The main component used is the ACS712 sensor from Allegro MicroSystems to measure the current. It provides economical and precise solutions for AC or DC current sensing in industrial, commercial and communications systems. Located near the surface of the die.... -
This is a simple arduino project for a soil moisture sensor that will light up a LED at a certain moisture level. It uses Arduino Duemilanove microcontroll.... -
Here is the circuit of an Arduino-based Panic Alarm! The wiring is very simple so that even a novice can construct this interesting circuit without any difficulty. Arduino is a family of microcontrollers (tiny computers) and a software creation environment.... -
Part Fill valves are widely used in Rainwater tanks. The valve will open once the water level in the tank has fallen to a low posit.... -
Electronic devices love accuracy. If you give them the same task twice, you will get the same resault. But sometimes you want some random result. This can be used in games. You can create your own lottery game. We will help you to do that kind of game with.... -
The voltage regulator built onto the Arduino Uno is a linear-type regulator and is horribly inefficient. If you are running the ATmega238 at 5V using a 9 V battery, approximately half of the battery`s energy will be dissipated as heat by the regulator. This.... -
This schematic is for an extremely bare-bones circuit and includes only the needed components to operate a ATmega328 running the Arduino Uno bootloader. I leave it to you to design your voltage regulation circuit (see this post ). The connections to AREF and.... -
Connect a 5 way button/joystick to an Arduino using a single analog pin and wanted to quickly simulate it to verify my calculations before I went and soldered everything. The voltages for the six states are 0, 1, 2, 3, 4, 5. The 4V being shown in the photo....
New Circuits
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
Popular Circuits
Three circuit options Can be synchronized to Christmas tree flashing lights This circuit...
Mains frequency is pretty stable and it is unlikely that you have to measure it but if you have...
Figure A is an R/2R resistor ladder. Each switch that is closed increases the amount of current...
This is a microphone pre-amp which I designed intended for function with a SoundBlaster(TM) AWE...
Today a close friend visits tell want Dry cell lead acid battery charger circuit 12V 7. 5hA...
LM317HV adjustable regulator is capable of supplying in excess of 1. 5A over a 1. 2V to 57V...
I have been given the following circuit diagram and have been asked to compute R2 and RC such...
A simple calculator, in conjunction with a COB (chip-on-board) from an analogue quartz clock, is...
The regen is basically an oscillator circuit with a gain control that allows the user to adjust...
a typical rf amplifier that is used in an AM radio receiver. In figure 2-19, the input circuit is...